Punctureless spring-tire.



4 D. W. MARTIN.

' PUNCTURELESS SPRING TIRE.

APPLICATION FILED JULY 31, 1907 Patented Aug. 5, 1913.

COLUMBIA PLANOGRAPH cm, WASHINGTON. n. c.

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PUNCTURELESS SPRING-TIRE.

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Application filed July 31, 1907.

To all whom it may concern Be it known that I, DANIEL lV. MARTIN, acitizen of the United States, residing at lVashington Court-House, inthe county of Fayette and State of Ohio, have invented certain new anduseful Improvements in Punctureless Spring-Tires; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

My invention relates to a punctureless spring tire for wheels, and whilesaid improved tire may be used to great advantage on any class or styleof wheels for which said tire is applicable, such for example as wheelsfor vehicles and bicycles, it is especially and directly intended to becombined in the construction of automobile wheels.

Referring to the accompanying drawing constituting a formal part of thisspecification, and wherein the same letters of reference are employed toindicate or point out the same parts wherever occurring throughout theseveral views: Figure 1, is a side elevation of a broken away portion ofa wheel, embodying my invention: Fig. 2, is a transverse sectional viewof the wheel as shown in Fig. l; and Fig. 3, is a broken away viewpartially in section of a portion of the rim of the wheel,showing theman ner of securing the springs. Figs. t and 5 are each, plan andvertical longitudinal sec-c tional viewsin group,of the outer and innerclips, respectively.

In describing my said invention specifically and referring in detail tothe various mechanical parts or elements of construction, of my improvedpunctureless spring tire, as shown throughout the several views of thedrawing, and indicated by means of the letters of reference asaforesaid; A and a designate respectively, the ordinary form of hub andspokes of a wheel; the outer end of each of said spokes being rigidlyseatedin the usual mannerin felly Z),- to which is secured in anyordinary and well known manner at 0, an inner metallic rim D,-(whichnecessarily remains stationary with the felly, spokes and hub) but ofcourse turns with the wheel. Said Specification of Letters Patent.

Patented A11 5,1913.

Serial No. 386,494.

rim having vertical flanges (Z forming a recess or channel in whichrests the lower end of each of the helical springs or reacting members@,'which are constructed of ma terial of suitable size and strength, andmay be arranged close or far apart as desired, around the circumferenceof the wheel on radial lines, as indicated by dotted lines in Fig. 1.The inner coil of each of said springs being retained in position by thesuitably formed ends f of each of the inner clips f(see Figs. 2 and;said clips being held in position by means of a boltheaded screw 9, theshank of which passes through the smooth or unscrew threaded eye f ofsaid clips and engages the screw threaded bore in the inner rim adaptedto receive it; while the opposite end of spring 6 is retained inposition by an outer clip ]L (see Figs. 2 and 4:)provided with endconcavities it adapted to receive the outer end coil of said springs,and further provided with a screw-threaded bore or eye 7L in which reststhe screw-threaded shank or screw 7c,the head of which rests in asuitable eye adapted to receive it located in the channel of outerhollow rim or annular inclosing casing L to which it is thus connected;one side Z of the inner portion of said rim being made removable bymeans of small screws Z thus forming an inclosing casing for the springsand clip attachments, by which the same are made readily accessible to,for repairs or any purpose desired, as fully and clearly shown in Fig.2. If so desired, and for the purpose of more firmly and rigidly holdingsaid springs in position, and for preventing and reinforcing theirstrength as against any shifting movementand as more fully seen andshown in Fig. 3, the inner and outer extreme ends or extremities formprojections or lugs n and 9 respectively, extending approximately atright angles to the coils of the spring: inner projection or lug nresting in a suitable depression or cavity adapted to receive it ininner metallic rim D; while outer projection or lug p resting in a likesuitable depression or cavity adapted to receive it in outer metallicrim L.

The outer surface or periphery of rim L is recessed so as to form achannel we, thus adapting it to receive the elastic punctureless orsolid tire M,preferably formed out of solid rubber or other likesuitable and solid material, and constructed in the usual manner. Itwill be observed that outer hollow rim or annular inclosing casing L issulticiently wider than inner rim D, thereby leaving an annular space at1" (see Fig. 2,)- between the same, thus permitting said outer rimthrough the medium of helical springs e,see dotted lines in Fig. 1,tohave sufficient play to give and react at any point, and with it thepunctureless elastic tire N wherever it may meet any ordinaryirregularity or obstruction, thus causing the wheel to pass or ridesmoothly over the roughest roads without any tear of a punctured tire orother damage to the wheel.

I am aware of a number of tires in the construction of which springs areemployed, but am not aware of any spring tires having my improvedfeatures or combinations of improved parts.

Having now fully and clearly illustrated and described my improvedpunctureless spring tire, what I claim as my invention 1s:-

1. A resilient wheel comprising in combination with the wheel telly, aninner rim tormed with a circumferential groove and vertical flanges andsecured to said telly, inner clips secured to said inner rim and formedwith lateral flanges to bear against the vertical flanges of said rim,an outer rim or casing grooved circumterentially to receive a tire,outer clips secured to said outer rim or casing and tormed'with recessedends, and coil springs secured by said inner and outer clips with theirinner convolutions seated between the lateral flanges ot the inner clipsand the inner rim, and their outer convolutions seated in the recessesot the outer clips and bearing against the outer rim or casing.

2. A resilient wheel comprising in combination with the wheel telly, aninner rim tormed with a circumferential groove and vertical flanges andsecured to said telly, inner clips secured to said inner rim and termedwith lateral flanges to bear against the vertical flanges of said rim,an outer rim or casing grooved circumterentially to receive a tire,outer clips secured to said outer rim or casing, and tormed withrecessed ends, and coil springs secured by said inner and outer clipswith their inner convolutions seated betweenthe lateral flanges ot theinner clips and the inner rim, and

their outer convolutions seated in the recesses ot the outer clips andbearing against the outer rim or casing, said springs having their innerand outer .convolutions tormed with vertical projections adapted to seatin recesses formed in the inner and outer rims ot the wheelrespectively.

In testimony whereot, I ai'fix my signature, in presence of twowitnesses.

DANIEL W. MARTIN.

Witnesses:

T. J. PERRIN, RODNEY W. MARTIN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

